| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Tritonicula bayeri (Marcus & Marcus, 1967) |
Western Atlantic | 1.1 | |
| Tritonicula hamnerorum (Gosliner & Ghiselin, 1987) |
Western Central Atlantic | ||
| Tritonicula wellsi (Marcus, 1961) |
Sea whip slug | Western Atlantic | 1 |